Brick-press



(No Model.) 3 Sheets-Sheet I.

G. A. BLINN.

BRICK PRESS. l No. 463,246. Patented Nov. 17,1891.

(No Model.) 3 Sheets-Sheet 2.

G. A. BLINN.

BRICK PRESS.

No. 463,246.l Patented Nov. 17, 1891.

WMI

111mm N El @lliure e Y (No Modem 3 Sheets-fSheet 3.

` Gr. A. BLINN.

BRICK PRESS.

10.463,246. f Patented Nov. 17,1891.

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Ninn STATES PATENT OFFICE.

GEORGE A. BLINN, OF DENVER, COLORADO.

SEECIFICATION forming partof Letters Patent No. 463,246, dated November 17, 1891.

Application filed February 26,1891. Serial No. 382,941. (No model.) I

To all whom t may concern.-

Be it known that I,GEORGE A. BLINN, a citi- Zen of the UnitedStatearesiding at Denver, in the county of Arapahoe and State of Oolorado, have invented certain new and useful Improvements in Brick-Presses, of which the following is a specification, reference being had therein to the accompanying drawings.

This improvement is designed to provide a brick-press which shall be cheaplj,T made, powerful and convenient in operation, and durable in `use; and the invention consists in the peculiar construction, arrangement, andV combination of parts hereinafter more particularly described, and then definitely claimed.

In the accompanying drawings, Figure 1 shows a side view of a press constructed according to my improvement. Fig. 2 is a plan of the same with part of the frame cut away. Fig. 3 is a vertical longitudinal central section of the same. FigiE is an end view. Figs.-

5 and G are details.

Referring now to the details of the draw ings by letter, 1 is the frame of the press, hav ing in each side peculiarlyformed slots 2 3 and provided with bearings for the drivingshaft a and the counter or crank shaft 5. On said driving-shaft 4t is mounted a belt-pulley G and pinions 7, which latter mesh with gears S, mounted on the shaft 5, each of which shafts is provided with face-plates il, connected by wrist-pin 10. It is obvious, however, that the said shaft 5, faceplates 9, and wrist-pin may be replaced by a single shaft having a crank in its center, if preferred.

Attached to the wrist-pin is a pitman 1l, connected inl any suitable manner with a mold-bed 12, having molds 13 formed therein and having at each side guides 1i, in which work cross heads 15 and 1o', having anti-friction rollers 17 working in the slots 2 and 23. Attached to these cross-heads are the upper and lower plungers 1S and 19, carrying dieplates 20, as shown. Between the sides of the frame 1 is bolted the feed-hopper 21, having its upper side inclined and provided with channels that pass between the upper set of plungers 18 as the latter move baclmvard. Iivoted at 22 to the sides of the frame are levers 23, having pivotally secured to their lower ends the arms 2t of the deliverer 25,

whose lower end is provided with abrush :25",

preferably made of three-ply rubber webbing i or packing. The upper ends of these arms are pivoted to slides 26, working in guides 2T and 28 and provided with two notches 29 and 30. Above each side is shown a spring 31, arranged to press the slide downward, so as to normally hold the notch 30 in the guide 28, and thus keep the deliverer stationary during a part of the time the press is in motion. At the lower end of the slot 3 are adjustable plates 3l, which are adjusted by means of arms 32,set on a rock-shaft 33, having an arm 34, which is connected by the rod to the lower end of the lever 36, which is pivoted to the frame at 37 and catches in the notches in curved rack 38, so as to hold said rockshatt and arms at any desired position.

The press maybe used with very good success when constructed as so far described; but to produce the best effect I heat the moldbed and plungers bystealn, as hereinafter described.

40 represents a steam-pipe, which may be connected with the steam-boiler of the engine that drives the press, or it may be connected with the exhaust of the engine. Said pipe is continued down into the plunger shownv at the left hand in Fig. 4, and after passing backward and forward in the bottom of said plunger emerges again and runs alo-ng the front of the cross-head 15 to atlexible or jointed pipe el, dropping branches on its way to the other plungers suspended from said crosshead 15. rlhis iieXible pipe is connected with the upper end of a pipe e2 running around the molds, as shown in Fig. 5, and whose other end is connected to a series of pipes 43 running through the lower plungers, as shown in Fig I do not propose to limit myself to any particular arrangement of the pipes for supplying steam, nor to pipes in cast metal, as shown in Figs. 5 and G, for the mold and plungers may be made with steam-channels cast directly in the body of the metal of which they are made, if preferred.

The operation is as follows: Motion being given to the press by a belt on the pulley or by any convenient means and the hopper being filled with the brick material, as soonas the mold-bed is drawn backward far enough IOO to bring the molds under thehopper the molds become filled, and as the mold-bed moves forward the lower plungers begin to rise and the upper ones to fall until .the bricks have received the desired amount of pressure, when both sets of plungers rise, leaving the upper set clear of the bricks and the latter on a level with the top of the mold-bed, at which time the lugs 44 on the cross-head l5 catch in the notches 29, and as they carry the slides 26 forward the levers 23 carry the deliverer backward. On each side of the deliverer is a pin 45, which slides over the spring 46, attached to the guides 14, thus lifting the deliverer over the bricks, and then falling down over the end of the spring drops the deliverer behind the bricks, so that as the cross -head retreats it carries back the slides 26 and the deliverer moves forward, raking the brick oft' of the lower plungers. As soon as the slides 26 in their backward movement carry the notches 30 into the guides 2S the spring 3l presses them downward, 'and thus they are securely held in that position,as the lugs 44 drop out of the notches 29 and have no effect on them until the cross-head again comes forward. As the bed continues to move backward and the deliverer is stationary the bricks are drawn forward onto the extreme end of the bed, from which they may be removed by hand. The amount of clay to be fed into the machine will be regulated by raising or lowering the plates 3l, which may be readily accomplished by means oi the 1e- 'ver 36, rod 35, arms 32 and 34, whose operation will easily be seen.

From. the above description it will be seen that I have produced a machine that is simple, cheap to construct, very powerful, easily Operated, and not- Ylikely to get out of order.

As the molds and plungers are heated by steam, the bricks do not stick to them, and consequently all the bricks are of perfect shape.

What I claim as new is l. In a brick-press, the combination of a frame provided with slots at each side, cross heads working in said slots, carrying` oppositely-moving plungers, and a reciprocating mold-bed moving between said cross-heads, substantially as described.

2. In a brick-press, the combination of a f ramo provided with slots at each side, crossheads working therein, carrying oppositelymoving plungers, a reciprocating mold-bed, and a deliverer operated by the said mold- .bed, substantially as described.

3. In a brick-press, the combination of a frame provided with slots at each side, a reciprocating mold-bed provided with side guides, and cross-heads carrying oppositely-moving plungers and working in said guides and slots, substantially as described.

4. In a brick-press, the combination of a frame provided with slots at each side, a reciprocating mold-bed working;r in guides on said frame and provided with guides at each side, cross-heads carrying oppositely-moving plungers and working in said guides and slots, and a deliverer operated by the motion of the mold-bed, substantially as described.

5. `In a brick-press, the combination of a frame provided with slots at each side, a reciprocating mold-bed working in guides on said frame and provided with guides at each side, cross-heads carrying oppositely-moving plungers and working in said guides and slots, a deliverer operated by theflnotion of the mold-bed, and means, as the pin 45 and spring 46, for raising said deliverer as it passes backward over the bricks, substantially as described.

Y 6. The combination, in a briclepress, of a frame having slots for raising and vlowering the lower plunger, and the adjustable plates in the bottom of said slots for regulating the amount of feed, substantially as described.

7. The combination, in a brick-press, of a frame for raising and lowering the lower plunger, movablevplates forming the lower wall of said slots, the arms 32, operating on said plates and mounted on the rock-shaft 33, andthe arm 34, mounted on said rock-shaft and connected by the rod 35 to the adj usting-lever 36, substantially as described.

In testimony whereof I affix my signature, in 'presence of two witnesses, this 14th day of February, 1891.

4 GEORGE rA. BLINN.

Witnesses:

J No. J. SHOTWELL, W. J. MATHERLY. 

